Set x {
    x.shape = CircleTransform {
        strokeWidth : 0
    }

    x.text = TextTransform {
      scaleX : 1.0
      scaleY : 1.0
      string : x.label
    }

    x.labelFn = encourage containsPoly(x.shape, x.text)
    x.maxSizeFn = encourage maximumSize(x.shape, 300.0)
    x.minSizeFn = encourage minimumSize(x.shape, 80.0)
    x.onCanvasFn = encourage polyOnCanvas(x.shape)
    LOCAL.layering  = x.shape below x.text
}

Set x; Set y
where NotIntersecting(x, y) {
    LOCAL.posFn = encourage disjointPoly(x.shape, y.shape)
}